user
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Add a feature to the following class definition.

### Input:
class Student(): 
    def __init__(self, name, age, grade): 
        self.name = name 
        self.age = age 
        self.grade = grade

### Response:
assistant
class Student(): 
    def __init__(self, name, age, grade, gender): 
        self.name = name 
        self.age = age 
        self.grade = grade
        self.gender = gender